PIC16LF1828T-I/SO - 7KB Flash 32MHz 8-bit MCU | Microchip
MPN: PIC16LF1828T-I/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.42 | $2.42 |
| 10 | $2.18 | $21.80 |
| 100 | $1.92 | $192.00 |
| 500 | $1.74 | $870.00 |
| 1,000 | $1.55 | $1,550.00 |
PIC16LF1828T-I/SO Overview
A microcontroller (MCU) is a single-chip computer containing a CPU, program and data memory, and configurable peripherals. The PIC16LF1828 sits in the 8-bit MCU segment of the broader microcontroller hierarchy, a category that bridges simple logic ICs and 32-bit microprocessors. Within Microchip's taxonomy it belongs to the PIC16 family (8-bit), specifically the mid-range enhanced core with XLP power management. The 'LF' prefix denotes the low-voltage (1.8V-3.6V) variant that uses Flash program memory, optimized for ultra-low-power embedded applications.
Key features include 256B RAM, 128B EEPROM, an internal 32 MHz oscillator with 4x PLL option, 5-bit DAC, 2 analog comparators, 4 PWM channels, 5 timers, mTouch capacitive sensing peripheral, and serial interfaces (I2C, SPI, USART). The XLP technology provides sleep currents below 50 nA typical and active currents around 50 uA at 1 MHz, making it ideal for energy-harvesting and battery-powered sensor nodes. The 20-pin SOIC package supports through-hole-style prototyping footprints with surface-mount manufacturing.
Architecturally, the PIC16LF1828 uses a Harvard RISC core with separate program and data buses, executing one instruction per clock cycle (except branches). The peripheral pin select (PPS) allows remapping of digital peripherals to different I/O pins, simplifying PCB layout. Integrated debug via ICD and 49-instruction instruction set balance code density and execution speed for embedded control loops.
Typical applications include battery-powered IoT sensor nodes, low-power wireless transmitters, capacitive touch user interfaces, LED lighting controllers, and consumer handheld devices. The wide 1.8V to 3.6V supply range allows direct operation from a single Li-ion or 2x AA cell stack.
When designing, ensure VDD decoupling is placed within 3 mm of the VDD pin, and consider enabling the internal voltage regulator mode. For ultra-low standby, route unused peripherals to their lowest-power state via the PMD module.
This page synthesizes distributor pricing, verified drop-in alternatives, and practical design notes for the PIC16LF1828T-I/SO, including parametric comparisons and engineering selection guidance not found on a single distributor page.
Drop-in alternatives for PIC16LF1828T-I/SO — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16LF1828T-I/SO (same form factor and footprint) — differing in Package, ADC, I/O Pins, Internal Oscillator, MSL Level.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LF1828-I/SO
✅ Drop-In✓ In Stock
$1.32 / Unit
View Datasheet →PIC16LF1827T-I/SO
✅ Drop-In✓ In Stock
$1.15 / Unit
View Datasheet →PIC16F1828T-I/SO
✅ Drop-In✓ In Stock
$1.04 / Unit
View Datasheet →PIC16F1828-I/SO
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC16F1828T-I/SO
✅ Drop-In✓ In Stock
$1.04 / Unit
View Datasheet →PIC16LF1828T-I/SO Maximum Ratings & Electrical Characteristics
| Family | PIC16F/LF182x (mid-range 8-bit enhanced core) |
| Series | PIC PIC XLP mTouch 16F |
| Core | 8-bit PIC (RISC, 49 instructions, 16-level hardware stack) |
| Program Memory | 7 KB (4K x 14) Flash |
| RAM | 256 B |
| EEPROM | 256 B (per family datasheet, not in web snippet) |
| Maximum CPU Speed | 32 MHz |
| Internal Oscillator | 32 MHz (selectable, 4x PLL option) |
| Supply Voltage (VDD) | 1.8 V to 3.6 V (LF variant) |
| I/O Pins | 17 (per 20-pin package family) |
| Timers | 5 |
| PWM Channels | 4 |
| Analog Comparators | 2 |
| DAC | 5-bit DAC (1 channel) |
| ADC | 12-channel 10-bit ADC (per family datasheet, not in web snippet) |
| Communication Interfaces | I2C, SPI, USART (1 each, with PPS) |
| Capacitive Touch | mTouch peripheral (CTMU-based) |
| Operating Temperature | -40 C to +85 C (Industrial, I grade) |
| Package | 20-pin SOIC (SO), 7.50 mm body width (0.300 inch) |
| Mounting Type | Surface Mount |
| MSL Level | 1 (unlimited floor life, per Microchip SOIC family) |
| RoHS Status | Compliant |
PIC16LF1828T-I/SO Pin Configuration
| Pin 1 | RA5/SS/HLVDIN/T1CKI/VCAP — GPIO/SS/HLVD input/Timer1 clock/POR VCAP; with PPS |
| Pin 2 | RA4/AN3/T1G/SDO/C1OUT — GPIO/ADC3/Timer1 gate/SPI SDO/Comparator1 out |
| Pin 3 | RA3/AN2/C1IN+/VREF+/DACOUT — GPIO/ADC2/Comparator1+/VREF+/DAC output |
| Pin 4 | RA2/AN1/C2IN+/VREF- — GPIO/ADC1/Comparator2+/VREF- |
| Pin 5 | RA1/AN0/C2IN-/ICSPCK/INT — GPIO/ADC0/Comparator2-/ICD clock/External int |
| Pin 6 | RA0/AN4/C1IN-/DACREF+/ICSPDAT — GPIO/ADC4/Comparator1-/DAC ref+/ICD data |
| Pin 7 | VDD — Positive supply voltage (1.8V to 3.6V for LF) |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKIN/RA7 — Crystal/clock input or GPIO |
| Pin 10 | OSC2/CLKOUT/RA6 — Crystal/clock output or GPIO |
| Pin 11 | RC0/SOSCO/T1OSC — GPIO/SOSC crystal/Timer1 RTC osc |
| Pin 12 | RC1/SOSCI/CCP2 — GPIO/SOSI crystal/CCP2 PWM |
| Pin 13 | RC2/P1A/CCP1 — GPIO/PWM1A/CCP1 PWM |
| Pin 14 | RC3/SDO/SCL — GPIO/SPI SDO/I2C SCL (with PPS) |
| Pin 15 | RC4/SDI/SDA — GPIO/SPI SDI/I2C SDA (with PPS) |
| Pin 16 | RC5/TX/CK — GPIO/USART TX/USART CK (with PPS) |
| Pin 17 | RC6/RX/DT — GPIO/USART RX/USART DT (with PPS) |
| Pin 18 | RC7/AN9 — GPIO/ADC9 |
| Pin 19 | MCLR/VPP/RE3 — Reset/programming voltage/extended GPIO |
| Pin 20 | RB7/AN10 — GPIO/ADC10 |
Typical Applications
PIC16LF1828T-I/SO is suitable for 7 applications: Battery-Powered IoT Sensor Node, Capacitive Touch User Interface, LED Lighting Controller, Consumer Handheld Device, Industrial Sensor Transmitter, Energy-Harvesting Wireless Switch, Small Appliance Control Board.
Battery-Powered IoT Sensor Node
The PIC16LF1828T-I/SO is ideal for battery-powered IoT sensor nodes thanks to its nanoWatt XLP technology delivering sub-50 nA sleep current and 1.8V-3.6V operating range. With 7 KB Flash and 256B RAM, the MCU can host sensor drivers, sleeping protocols, and lightweight MQTT/CoAP stacks. The 12-channel 10-bit ADC reads temperature, humidity, and battery voltage directly, while the mTouch peripheral enables capacitive user buttons. Operates from a CR2032 coin cell for multi-year battery life.
Recommended
Capacitive Touch User Interface
The PIC16LF1828T-I/SO integrates Microchip's mTouch capacitive sensing peripheral (CTMU-based) which supports up to 12 touch channels via the 12-channel ADC. This eliminates the need for an external touch controller, reducing BOM cost in consumer appliances, lighting controls, and small home-automation panels. With 4 PWM channels it directly drives LED backlighting or haptic feedback. Sleep current under 50 nA keeps wall-switch and battery touch remotes compliant with standby regulations.
Recommended
LED Lighting Controller
The PIC16LF1828T-I/SO provides 4 hardware PWM channels and 5 timers, sufficient for multi-channel RGB or tunable-white LED controllers with smooth dimming. The 32 MHz CPU runs PID color-mixing loops, while the I2C peripheral interfaces with digital LED drivers or ambient-light sensors. With 1.8V-3.6V operation the MCU runs directly from LED driver auxiliary rails. The 5-bit DAC can synthesize 32-step logarithmic dimming curves for human-perceived smooth brightness transitions.
Recommended
Consumer Handheld Device
The PIC16LF1828T-I/SO serves consumer handhelds such as remote controls, toys, e-readers, and small personal electronics. Its 32 MHz CPU delivers responsive user-interface latency, and the 7 KB Flash fits USB HID, BLE host controllers, or simple game engines. The USART peripheral connects to Bluetooth modules; the mTouch buttons replace mechanical switches for sealed industrial designs. XLP current profile supports 6-12 months on a single coin cell in typical handheld duty cycles.
Recommended
Industrial Sensor Transmitter
The PIC16LF1828T-I/SO powers industrial 4-20 mA loop sensors, RTD/thermocouple transmitters, and small PLC I/O modules. Its 10-bit ADC achieves sufficient resolution for process variables when averaged, and its I2C/SPI/USART interfaces connect to external ADCs, DACs, or HART modems. The 1.8V-3.6V operation matches loop-powered 3.3V rails. The -40 C to +85 C industrial temperature rating is suitable for factory-floor enclosures and outdoor sensor pods.
Recommended
Energy-Harvesting Wireless Switch
The PIC16LF1828T-I/SO drives kinetic or RF energy-harvesting wireless switches such as EnOcean-compatible light controls. With sub-50 nA sleep current and sub-us wake-up time, the MCU can run entire system cycles on harvested microjoule pulses. The 32 MHz CPU processes wireless protocols within the active window. With 256B RAM and 7 KB Flash, the part fits proprietary sub-GHz protocols and PWM transmitter drive without external memory.
Recommended
Small Appliance Control Board
The PIC16LF1828T-I/SO controls small home appliances such as coffee makers, blenders, fans, and countertop kitchen devices. Its 4 PWM channels drive brushed DC motors or TRIAC-controlled AC loads; the comparators detect zero-cross for TRIAC phase-angle dimming. The 5 timers implement precise cooking or timing sequences, and the 5-bit DAC provides analog reference for sensor bridges. The 20-pin SOIC package eases hand-soldering during prototyping and short-run production.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LF1828T-I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LF1828-I/SO | PIC16LF1827T-I/SO | PIC16F1828T-I/SO | PIC16F1828-I/SO |
|---|---|---|---|---|---|
| Package | 20-SOIC (300 mil) | 20-SOIC (300 mil) - same | 20-SOIC (300 mil) - same | 20-SOIC (300 mil) - same | 20-SOIC (300 mil) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 7 KB Flash | 7 KB Flash | 7 KB Flash | 7 KB Flash | 7 KB Flash |
| RAM | 256 B | 256 B | 384 B (+50%) | 256 B | 256 B |
| Maximum VDD | 3.6 V (LF variant) | 3.6 V | 3.6 V | 5.5 V (F variant) | 5.5 V (F variant) |
| Maximum CPU Speed | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Packaging Format | Tape & Reel (T suffix) | Tube (no T suffix) | Tape & Reel | Tape & Reel | Tube |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| Approx. Qty-1 Price (USD, as of 2026-09-24) | $2.42 | $2.36 | $2.50 | $2.32 | $2.28 |
Key Differentiators
- Same Flash with 50% more RAM as drop-in upgrade (vs PIC16LF1828-I/SO)
- 5V-tolerant F variant pin-compatible (vs PIC16F1828T-I/SO)
- Tape and Reel packaging for SMT lines (vs PIC16LF1828-I/SO)
Design Notes
Estimated: when powering the PIC16LF1828T-I/SO from a coin cell or 3.3V LDO, place a 100 nF X7R decoupling capacitor within 3 mm of the VDD pin (pin 7) and a 10 uF bulk capacitor near the supply rail entry. For sub-1 mA quiescent designs, route unused peripherals to their lowest-power state via the PMD (Peripheral Module Disable) registers, and select the LFINTOSC at 31 kHz during sleep to minimize active current. The XLP sleep current drops below 50 nA typical with RTCC and WDT disabled.
For 20-SOIC (300 mil) layout, use a 0.65 mm wide SOIC land pattern with 1.0 mm pad length; ensure MCLR (pin 19) has a 10 kohm pull-up to VDD unless the internal pull-up is enabled in software. Place the optional VCAP ceramic capacitor (typically 0.1 uF X7R) close to the VCAP pin when internal voltage regulator mode is enabled. Trace impedance for high-speed signals (SPI SDO at >10 MHz) should be series-terminated to avoid ringing on long nets.
Do not exceed 3.6V on the LF variant VDD; use the PIC16F1828 (5V tolerant) instead if your system rails reach 5V. When using mTouch capacitive sensing, calibrate each PCB layout's touch sensor with reference-less or grounded reference methods per Microchip application note TB1094; miscalibrated thresholds cause false triggers in noisy environments. When configuring PPS (peripheral pin select), note that input and output functions are independent - you must lock both the input pin and the output pin assignments separately.
Compliance Information
RoHS and REACH compliant per Microchip product declarations. Not AEC-Q100 qualified - the automotive variant is PIC16F1828-E/SO with extended temperature and Q100 qualification.
